echo Goedenmiddag! EXIT
WAD, and not a crash -- EXIT tells TCC you want to shut down the session. And it does.
Minor "issue": if you start IDE.exe from a CMD prompt, afterwards the window title is set to "ide" and the prompt is not shown. [Enter] fixes that last one.
Source is linked to this message.
Assuming you're in a console session (not a TCMD tab window), the title change is being done by CMD, not IDE.
I do think there is a vulnerability here, somewhere. If I may suggest something - what might be a rare condition and perhaps therefor untested - is:
process A (deferring something) - chaining to B - chaining to C
When is the deferred action executed? Before B or after C? Just a thought.
Sorry. It took a while to get back at you.
Enclosed two screenshots. "Crash" should be understood as an unhandled exception in IDE.exe, followed by an Access violation, followed by a restart of the IDE/debugger.